viral DNA genome replication / uracil DNA N-glycosylase activity / nucleotide-excision repair, DNA gap filling / DNA replication proofreading / 3'-5'-DNA exonuclease activity / SOS response / base-excision repair, gap-filling / DNA recombination / DNA replication / DNA-directed DNA polymerase ...viral DNA genome replication / uracil DNA N-glycosylase activity / nucleotide-excision repair, DNA gap filling / DNA replication proofreading / 3'-5'-DNA exonuclease activity / SOS response / base-excision repair, gap-filling / DNA recombination / DNA replication / DNA-directed DNA polymerase / DNA-directed DNA polymerase activity / DNA repair / nucleotide binding / DNA binding 類似検索 - 分子機能
DNA-directed DNA polymerase, family B, viral insert domain / DNA polymerase B exonuclease, N-terminal / DNA polymerase family B viral insert / DNA polymerase family B exonuclease domain, N-terminal / Chordopoxvirus A20R / Chordopoxvirus A20R protein / Uracil-DNA glycosylase, active site / Uracil-DNA glycosylase signature. / Uracil-DNA glycosylase-like domain superfamily / DNA polymerase family B signature. ...DNA-directed DNA polymerase, family B, viral insert domain / DNA polymerase B exonuclease, N-terminal / DNA polymerase family B viral insert / DNA polymerase family B exonuclease domain, N-terminal / Chordopoxvirus A20R / Chordopoxvirus A20R protein / Uracil-DNA glycosylase, active site / Uracil-DNA glycosylase signature. / Uracil-DNA glycosylase-like domain superfamily / DNA polymerase family B signature. / DNA-directed DNA polymerase, family B, conserved site / DNA polymerase family B / DNA polymerase family B, exonuclease domain / DNA-directed DNA polymerase, family B, exonuclease domain / DNA-directed DNA polymerase, family B, multifunctional domain / DNA polymerase, palm domain superfamily / DNA polymerase type-B family / DNA-directed DNA polymerase, family B / Ribonuclease H superfamily / Ribonuclease H-like superfamily / DNA/RNA polymerase superfamily 類似検索 - ドメイン・相同性
DNA polymerase / DNA polymerase processivity factor / Uracil-DNA glycosylase 類似検索 - 構成要素
National Natural Science Foundation of China (NSFC)
中国
引用
ジャーナル: Science / 年: 2023 タイトル: Structure of monkeypox virus DNA polymerase holoenzyme. 著者: Qi Peng / Yufeng Xie / Lu Kuai / Han Wang / Jianxun Qi / George F Gao / Yi Shi / 要旨: The World Health Organization declared mpox (or monkeypox) a public health emergency of international concern in July 2022, and prophylactic and therapeutic measures are in urgent need. The monkeypox ...The World Health Organization declared mpox (or monkeypox) a public health emergency of international concern in July 2022, and prophylactic and therapeutic measures are in urgent need. The monkeypox virus (MPXV) has its own DNA polymerase F8, together with the processive cofactors A22 and E4, constituting the polymerase holoenzyme for genome replication. Here, we determined the holoenzyme structure in complex with DNA using cryo-electron microscopy at the global resolution of ~2.8 angstroms. The holoenzyme possesses an architecture that suggests a "forward sliding clamp" processivity mechanism for viral DNA replication. MPXV polymerase has a DNA binding mode similar to that of other B-family DNA polymerases from different species. These findings reveal the mechanism of the MPXV genome replication and may guide the development of anti-poxvirus drugs.